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Intake lifter gone?? Pushrod drops into crankcase?

Discussion in 'Early CJ5 and CJ6 Tech' started by tom85cj7, Jun 1, 2005.

Page 2 of 2
  1. Jun 3, 2005
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
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    4,275
    Well with that being the case, it sounds like the tappet for the intakes is a one-piece unit, unlike the exhausts. And it sounds like that one tappet is severely damaged or worn. The only "right" way to fix it is to replace the bad tappet and you have to pull the cam to do that.

    Is it a big job? Sort of. You'll have to pull the oil pan and front cover, and the cam will slide right out. Of course all the tappets are going to drop out as soon as you do that, but if you're going to go that far I would replace all 8 anyway.

    I would rate this as a 3-4 six-pack job. YMMV. ;)
     
    w3srl, Jun 3, 2005
    #21
  2. Jun 3, 2005
    Old Bill

    Old Bill Aggressively passive....

    Really Southern...
    Joined:
    Nov 12, 2004
    Messages:
    822
    Is this particular pushrod shorter than the others maybe?

    (It's always the simple things that'll get you...)
     
    Old Bill, Jun 3, 2005
    #22
  3. Jun 3, 2005
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
    Messages:
    8,525
    it has to be a problem with the push rod seating on/in the tappet
    must be collpased/worn thru as stated
    there is no other way for the push rod to "go" anywhere
     
    jpflat2a, Jun 3, 2005
    #23
  4. Jun 3, 2005
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
    Joined:
    Sep 20, 2002
    Messages:
    4,350

    Use clothes pins to hold the tappets up while pulling the cam
     
    blevisay, Jun 3, 2005
    #24
  5. Jun 3, 2005
    tom85cj7

    tom85cj7 New Member

    Joined:
    May 30, 2005
    Messages:
    12
    Well it sounds like the consensus is that the lifter/tappet is worn through. As I said before, this is on a FC150 so pulling the cam is a major ordeal. It basically requires pulling the engine. I am not going to do that so I will build up the pushrod so it won't fit through the worn tappet. Worst case scenario, I will just remove the pushrod and run on 3 cyls. I have probably been running that way this whole time. Thanks for the pics and suggestions. I would still like to see a pic of an intact intake tappet if anyone has one.

    Thanks,
    Tom
     
    tom85cj7, Jun 3, 2005
    #25
  6. Jun 3, 2005
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
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    8,525
    courtesy of vanguards F4
     
    jpflat2a, Jun 3, 2005
    #26
  7. Jun 3, 2005
    tom85cj7

    tom85cj7 New Member

    Joined:
    May 30, 2005
    Messages:
    12
    Great Picture!! Thanks. Now I know where the sleeve will be resting.
     
    tom85cj7, Jun 3, 2005
    #27
  8. Jun 3, 2005
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
    Messages:
    8,525
    okay
    so you are saying that the push rod drops inside the tappet, correct?
     
    jpflat2a, Jun 3, 2005
    #28
  9. Jun 3, 2005
    vanguard

    vanguard

    So that's whats inside there. :D
     
    vanguard, Jun 3, 2005
    #29
  10. Jun 4, 2005
    tom85cj7

    tom85cj7 New Member

    Joined:
    May 30, 2005
    Messages:
    12
    Push rod drops inside tappet. Correct!

    I have modified the pushrod. I will post a pic soon.
     
    tom85cj7, Jun 4, 2005
    #30
  11. Jun 7, 2005
    tom85cj7

    tom85cj7 New Member

    Joined:
    May 30, 2005
    Messages:
    12
    Here is a picture of the modified pushrod.

    [​IMG]

    It is installed and adjusted. I think I am going to need an additional 1/4" of length to make it work best. I could tell a definite difference in the exhaust smell and tone with the #2 cylinder functioning. I didn't realize the engine had a miss until I heard what it sounded like without one. Anyhow, we will see how long this repair lasts. Thanks for all the tips and suggestions.

    -Tom
     
    tom85cj7, Jun 7, 2005
    #31
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